diff --git a/cwDsp.cpp b/cwDsp.cpp
index c0e3897..eceb488 100644
--- a/cwDsp.cpp
+++ b/cwDsp.cpp
@@ -9,6 +9,7 @@
 #include "cwMath.h"
 #include "cwVectOps.h"
 #include "cwDsp.h"
+#include "cwText.h"
 
 
 //----------------------------------------------------------------------------------------------------------------------
@@ -35,7 +36,7 @@ cw::rc_t cw::dsp::fft::test()
 
   create<real_t>(p,xN,flags);
   
-  if(p != nullptr )
+  if(p == nullptr )
   {
     rc = cwLogError(kOpFailRC,"FFT procedure allocation failed.");
     goto errLabel;
@@ -157,3 +158,31 @@ cw::rc_t cw::dsp::convolve::test()
 // 1.   0.5  0.25 0.1  1.05 0.5  0.25 0.1  1.05 0.5  0.25 0.1  0.05 0.0.   0.  ]
 // 1.0  0.5  0.25 0.1  1.05 0.5  0.25 0.1  1.05 0.5  0.25 0.1  1.05 1.0    0.75 0.
 
+
+cw::rc_t cw::dsp::test_dsp( const test::test_args_t& args )
+{
+  rc_t rc = kOkRC;
+
+  if( textIsEqual(args.test_label,"fft") )
+  {
+    rc = fft::test();
+    goto errLabel;
+  }
+  
+  if( textIsEqual(args.test_label,"ifft") )
+  {
+    rc = ifft::test();
+    goto errLabel;
+  }
+
+  if( textIsEqual(args.test_label,"convolve") )
+  {
+    rc = convolve::test();
+    goto errLabel;
+  }
+  
+  rc = cwLogError(kInvalidArgRC,"Unknown dsp test case module:%s test:%s.",args.module_label,args.test_label);
+  
+errLabel:
+  return rc;
+}
diff --git a/cwDsp.h b/cwDsp.h
index ec827ea..706864b 100644
--- a/cwDsp.h
+++ b/cwDsp.h
@@ -530,7 +530,7 @@ namespace cw
         for(unsigned i=0; i<binN; ++i)
           p->hV[i] = hScale * p->ft->cplxV[i] / ((T)cN);
 
-        printf("procN:%i cN:%i hN:%i binN:%i outN:%i\n", procSmpN, cN, hN, binN, p->outN );
+        //printf("procN:%i cN:%i hN:%i binN:%i outN:%i\n", procSmpN, cN, hN, binN, p->outN );
         
         return kOkRC;
       }
@@ -625,7 +625,9 @@ namespace cw
       rc_t test();
         
       
-    }    
+    }
+    
+    rc_t test_dsp( const test::test_args_t& args );
     
   }
 }
diff --git a/cwTest.cpp b/cwTest.cpp
index 0fb221c..11b95b6 100644
--- a/cwTest.cpp
+++ b/cwTest.cpp
@@ -50,6 +50,7 @@ namespace cw
       { "/filesys", filesys::test },
       { "/object",  object_test },
       { "/vop",     vop::test },
+      { "/dsp",     dsp::test_dsp },
       { "/time",    time::test },
       { "/flow",    flow::test },
       { "/textBuf", textBuf::test },